8944500721 has 8 divisors (see below), whose sum is σ = 9641132480. Its totient is φ = 8249096592.

The previous prime is 8944500707. The next prime is 8944500757. The reversal of 8944500721 is 1270054498.

8944500721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8944500721 - 2⁵ = 8944500689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8944500221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291741 + ... + 320938.

It is an arithmetic number, because the mean of its divisors is an integer number (1205141560).

Almost surely, 2^8944500721 is an apocalyptic number.

It is an amenable number.

8944500721 is a deficient number, since it is larger than the sum of its proper divisors (696631759).

8944500721 is a wasteful number, since it uses less digits than its factorization.

8944500721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613815.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 8944500721 is about 94575.3705834664. The cubic root of 8944500721 is about 2075.7993317379.

The spelling of 8944500721 in words is "eight billion, nine hundred forty-four million, five hundred thousand, seven hundred twenty-one".